package com.qf.controller;/*
 * @author     : XXX
 * @date       : 2022/5/20 14:35
 * @description: some description
 */

import com.qf.pojo.User;
import com.qf.service.AdminService;
import com.qf.service.AdminServiceImpl;

import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/admin")
public class AdminController extends BaseServlet {
    public String login(HttpServletRequest request, HttpServletResponse response){
        //1 获取参数
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        //2 判断用户名密码不为空,如果为空跳转到登录页面
        if(username == null || password == null){
            return "redirect:" +  request.getContextPath()+"/admin/login.jsp";
        }
        //3 调用service校验用户名密码

        AdminService adminService = new AdminServiceImpl();
        User user = adminService.login(username,password);
        //4. 根据结果判断进行重定向操作
        if (user != null) {
            //5. 将登录成功后的用户对象放入tomcat的session会话中一直携带
            request.getSession().setAttribute("admin", user);
            //跳转到管理员首页
            return "redirect:" + request.getContextPath() + "/admin/admin.jsp";

        } else {
            //用户名, 密码不正确, 跳转到登录页面重新登录
            return "redirect:" + request.getContextPath() +"/admin/login.jsp";
        }
    }
}
